https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118388 Bug 118388 depends on bug 118319, which changed state.
Bug 118319 Summary: [12/13/14/15 Regression] ICE Segmentation fault in friend declaration with default argument assigned to an empty lambda expression https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118319 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED